Celebrity chef Gordon Ramsay's name has become street slang for a knife, a court has heard.
The victim was chased down an alleyway by two boys, one of whom produced a knife and fatally stabbed him in the stomach, jurors heard.
His friends and older brother Abdirahman rushed to his side, dragged him into a nearby porch and chased after the killers as they ran away, the Old Bailey was told on Tuesday (September 19).
Mr Tarabi was treated by paramedics at the scene and then taken to St Mary's Hospital where he was pronounced dead later that afternoon.
Two youths, both aged 17, from west London, are on trial at the Old Bailey accused of murder.
Prosecutor Duncan Penny QC played graphic CCTV footage showing Mr Tarabi's last moments.
He told jurors: "You will hear the audio recording shouting by the deceased.
"When you listen to it again you may think he can be heard shouting 'Back the Ramsay, back the Ramsay' - the deceased's brother understood to mean 'go get a knife' or 'fetch a knife'.
"According to Abdirahman, the word Ramsay was used by Abdullahi and his friends to mean knife - as some sort of slang reference to the celebrity chef Gordon Ramsay.
"Abdullahi shouting 'Back the Ramsay' on the CCTV recording from Newnham Close is audible.
"So in shouting 'Back the Ramsay' in the face of what chased him, it would appear he was asking his friends or his brother for a weapon with which to defend himself from the imminent attack."
The victim's family sat in court for the start of the trial but appeared to become upset as the CCTV footage of the killing was shown and walked out.
The two defendants, who cannot be identified for legal reasons, deny the charge against them.
The trial continues.
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